transport, Send all outgoing mail to an ISP's SMTP server

1. How to send outgoing email via ISP SMTP server - Manage MS Exchange Server

2. Exchange 2003 not sending mail to ISP's SMTP Host

Hello,

This might be a bit long winded but I want to paint as 
complete a picture as possible of my problem.

I have installed Microsoft Small Business Server 2003 
including Exchange Server 2003.

The Server is a local domain and is not out on the 
internet.  It is server.home.local.

We are using POP connectors for e-mail that are used with 
our ISP.  They are not hotmail, or yahoo mail and stuff 
like that.  They are mail accounts set up by the same ISP 
we use for Internet Access.   Its mail server for both 
POP and SMTP are mail.ptdprolog.net.

We have one single NIC card in the server.  This is 
connected to a 16 Port 3COM hub.  The internet is 
connected through our local CABLE Internet provider. 
(Prolog)  The cable modem is connected to a Linksys 
Cable/DSL router which uses NAT translation, which is 
then connected to the 3COM hub.

On a side note, users who have used Outlook Express on 
the same network are able to send and receive e-mail 
without any problems, so I know the information is 
passing through the router just fine On port 110 and port 
25.

We are now taking these users who used Outlook Express 
and who checked their e-mail through their own Outlook 
Express and moving them to Outlook and using an Exchange 
Server to check on their POP accounts in place of each of 
the users using getting their e-mail separately.

I ran the wizard that comes with SBS2003 and configured 
all of the POP accounts correctly, and when it came time 
to configure the SMTP host, I choose to use my ISP's SMTP 
mail server which is mail.ptdprolog.net.

Exchange will now go out and receive all of the POP3 e-
mail without a problem.  I see it building up in the 
users Mailboxes each time it checks e-mail.  So I know 
that is working.

But when a user tries to send e-mail through our ISP's 
SMTP host it never makes it.  Most of the time we receive 
a bounce back telling us that the SMTP server 
(server.home.local) was rejected.  OF course this is the 
inside host and not the mail.ptdprolog.net where it 
supposed to go.

I have gone into Exchange Management, and made sure it 
created a smart host for the outside SMTP, which is did.  
But it continues to route it to the incorrect host.

I then went into the Virtual SMTP Host setting and 
noticed that it did have server.home.local in one of the 
setting, but right under this setting it had SMARTHOST 
and it was set to mail.ptdprolog.net.

However, it's still not functioning correctly.  My ISP 
does not block PORT 25 sends at all.  There is no login 
requirements with the exception that you must be using 
their domain to send e-mail, or you must be a user 
connected to their system to send which I am.

Outlook Express sends e-mail without problems.  On 
another side note, does anyone know how Outlook Express 
sends e-mail?  (IE:  ETURN or other)

I have tried changing setting on the way it connects with 
the SMTP server but none of them work.  I have gone into 
the SMTP Virtual Server and changed the one setting of 
server.home.local to mail.ptdprolog.net and had no 
effect.  Of course everything has been returned to its 
original settings until I figure this one out.

At this point, I'm stumped.  I have not really made any 
changes to the default setting that were made when I ran 
the INTERNET wizard in the TO DO list of SBS2003.   In 
SBS2000, this works flawlessly.  And pertaining to the 
POP connectors, it did set them up correctly, but it 
refuses to send any e-mail to my ISP's SMTP host.

My ways of testing this are using OWA as the 
administrator, and sending it to an outside account which 
I can check through the web also.  I will send an e-mail 
and then check the cue line to see if it's held up.  It 
is.  Sometimes it will bounce right away.  Others take a 
while longer.  But the e-mail never makes it to my ISP 
because when I check that account, it never shows the e-
mail.

I am not getting any errors in the Event Viewer.  SO I 
really don't have much in the way or reporting errors 
back.

HELP! 

I have never had this problem before, and after scouring 
these newsgroups for days, It seems it might possible 
that I might be the first to have this problem.  What am 
I doing wrong?

Is there an internal setting I need to change?!?!?!  Is 
there a way of testing this in other ways other then the 
way I'm testing it now?!??!

Thanks for all your help, and reading my long winded plea 
for help

Take Care, Tom

3. Forward all SMTP mail to ISP's server

4. Outgoing mail via SMTP account at ISP

Hi there

I am in the process of setting up an exchange 2000 server. Internal mail is 
working as is POP3 download but outgoing smtp mail is giving me problems.

I would like to make use of the smtp accounts that I have already gat at my 
ISP I hope to find a solution where user "a" send outbound mails via 
 XXXX@XXXXX.COM  and user "b" should send outbound mails via  XXXX@XXXXX.COM .

I have set up smtp connection to pass though  XXXX@XXXXX.COM  and for user "a", 
and it is working flawless.
However when logged in as user "b" and trying to send outbound mail I get 
the following reply from my ISP:
553 < XXXX@XXXXX.COM >: Sender address rejected: not owned by user  XXXX@XXXXX.COM >

I would like your comments as to whether I am on a wrong track, trying to 
"SMTP connect" to ISP SMTP server and if I am not I would appreciate any 
help I can get, because right now "I am Stuck".

Brgds

Jan